Psychopharmacologia

, Volume 29, Issue 3, pp 231–238 | Cite as

Marihuana and retrieval from short-term memory

  • C. F. Darley
  • J. R. Tinklenberg
  • T. E. Hollister
  • R. C. Atkinson
Human Pharmacology

Abstract

Twelve subjects received an oral dose of marihuana extract calibrated to 20 mg of δ1-tetrahydrocannibinol on Day 1 of the experiment and performed a short-term memory task before and after administration of the drug. The subjects were then split into two groups, receiving either marihuana or placebo on the evenings of Days 1 to 4 and between two memory test sessions on Day 5. Placebo subjects showed little change in performance between the two test sessions on Day 5; however, results from Day 1 for all subjects and Day 5 for the drug group showed that reaction time increased from before- to after-challenge sessions. This increase in time under marihuana was explained as a change in encoding and/or response processes, rather than processes involved in the search of the memory store.

Key words

Marihuana Memory Search Retrieval from Memory Encoding Processes Response Speed 

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References

  1. Atkinson, R. C., Shiffrin, R. M.: Human memory: A proposed system and its control processes. The psychology of learning and motivation: Advances in research and theory, vol. 2. K. W. Spence and J. T. Spence, eds. New York: Academic Press 1968.Google Scholar
  2. Atkinson, R. C., Shiffrin, R. N.: The control of short-term memory. Sci. Amer. 224, 82–90 (1971).Google Scholar
  3. Clark, T. D., Hughes, R., Nakashima, E. N.: Behavorial effects of marihuana: Experimental studies. Arch. gen. Psychiat. 23, 193 (1970).Google Scholar
  4. Hollister, T. E., Gillespie, H. K.: Marihuana, ethanol, and dextroamphetamine, mood and mental function alterations. Arch. gen. Psychiat. 23, 199–203 (1970).Google Scholar
  5. Juola, J. F., Atkinson, R. C.: Memory scanning for words versus categories. J. Verb. Learn. Verb. Behav. 10, 522–527 (1971).Google Scholar
  6. Murdock, B. B., Walker, J.: Modality effects in free recall. J. Verb. Learn. Verb. Behav. 8, 665–676 (1969).Google Scholar
  7. Sternberg, S.: High-speed scanning in human memory. Science 153, 652–654 (1966).Google Scholar
  8. Sternberg, S.: Memory scanning: Mental processes revealed by reaction time experiments. Amer. Sci. 57, 421–457 (1969).Google Scholar

Copyright information

© Springer-Verlag 1973

Authors and Affiliations

  • C. F. Darley
    • 1
    • 2
  • J. R. Tinklenberg
    • 1
    • 2
  • T. E. Hollister
    • 1
    • 2
  • R. C. Atkinson
    • 1
    • 2
  1. 1.Department of PsychologyStanford UniversityStanford
  2. 2.Palo Alto Veterans Administration HospitalPalo Alto

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